Improvement in stereotype-plates



IA. N. KELLOGG.

Stereotype-Plate. v Patented June 1, 1875.

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THE GRAPHIC C0.PHOTDLITH.39&4I PARK PLACLNY.

.. NITED STATES ANSEL N. KELLOGG, OF CHICAGO, ILLINOIS.

IMPROVEMENT IN STEREOTVPE-PLATES.

Specification forming part of Letters Patent No. 163,874, dated June 1,1875; application filed November 11, 1874.

To all whom it may concern Be it known that I, ANSEL N. KELLOGG, ofChicago, in the county of Cook and State of Illinois, have inventedcertain Improvements in the Method of Preparing Newspaper Stereotype orElectrotype Page-Plates for the Press, of which the following is aspecification:

It has never been deemed entirely practicable to use pages ofelectrotyped or stereotyped matter where changes in it were necessary,on account of the time and expense involved in making new pages or inaltering the plates, so that such changes are now almost universallymade in the type itself. It has, indeed, been common to make up pagespartly or wholly of stereotyped matter, and sometimes of stereotypedcolumns, but the plates in such cases are always of the size and shapegiven them in casting.

My invention is designed to obviate some of the objections anddifliculties attending the making of changes in pages composed wholly ofelectrotyped or stereotyped material, and is more especially adapted tothe printing of newspapers or other columned matter from such plates,where it is desired to change portions of the page for differenteditions without changing the whole form. Its nature will be fullyunderstood from the following description and the accompanying drawing,in which- Figure l is an end view of an electrotype page-plate as thesame appears when cast entire without columns. Fig. 2 is a plan View ofthe same after it has been severed accordin g to my improved method, andas it appears when locked in the chase and Fig. 3 is a transversesection of Fig. 2.

Like letters of reference indicate like parts in all the figures.

A represents the chase; B, the side-stick; O, the foot-stick; d d, thequoins; c e e, the three parts originally constituting the entirepage-plate shown in Fig. 1; e e e, the beds or blocks upon which saidparts rest; a, the head-rule; b, the foot-slug, and s s the columnrules.

The main feature of my improvement C011- sists in casting the plateswith a groove upon the back immediately opposite the column interval,and extending from head to foot.

This results in a variety of ways, which will occur to any skillfulmechanic; but it may be most readily accomplished by the insertion of aproper rule in the cover of the mold, which, when shut down, approachesthe column-rule, and may be adjusted to render the intervening film ofmetal of any desired thickness. This feature of my invention facilitatesthe operation of severing the plate into columns by reducing thethickness ofthmetal upon the line of the cut.

I do not claim the whole page-plate, nor the separate column plates evenof a whole form; but

I do claim as my invention, and desire to secure by Letters Patent Thewhole page-plate cast with a groove on the back opposite the intervalbetween the columns, substantially as specified.

A. N. KELLOGG.

Witnesses:

Enw. S. EVARTS, JOHN W. MUNDAY.

